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en/configuration/ResizeRootDiskImage.md

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+---
+layout: doc
+title: ResizeRootDiskImage
+permalink: /en/doc/resize-root-disk-image/
+redirect_from:
+- /doc/ResizeRootDiskImage/
+- /wiki/ResizeRootDiskImage/
+---
+
+Resizing \`root.img\` Size
+--------------------------
+
+The safest way to increase the size of \`root.img\` is to do it for a standalone
+VM (qvm-create --standalone) - which has its own root filesystem
+(copy of template, instead of smart sharing).
+But it should also work for a normal template (as long as changes in the
+template between reboots didn't exceed 10G).
+
+Replace the size and the path (name) of the template as wished and run your
+modified command:
+~~~
+truncate -s 20G /var/lib/qubes/vm-templates/fedora-21/root.img
+~~~
+
+Then start your template or standalone VM and run:
+~~~
+sudo resize2fs /dev/mapper/dmroot
+~~~
+
+after that shutdown the template.
+
+Then you should have extended \`root.img\` in your VM/template